X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fsecs2d-0.0.8%2FUtilities%2FUstructmesh_random.m;fp=octave_packages%2Fsecs2d-0.0.8%2FUtilities%2FUstructmesh_random.m;h=9b1ccd4c08c1c98b62d76bce131dfadf860af9ff;hp=0000000000000000000000000000000000000000;hb=c880e8788dfc484bf23ce13fa2787f2c6bca4863;hpb=1705066eceaaea976f010f669ce8e972f3734b05

diff --git a/octave_packages/secs2d-0.0.8/Utilities/Ustructmesh_random.m b/octave_packages/secs2d-0.0.8/Utilities/Ustructmesh_random.m
new file mode 100644
index 0000000..9b1ccd4
--- /dev/null
+++ b/octave_packages/secs2d-0.0.8/Utilities/Ustructmesh_random.m
@@ -0,0 +1,63 @@
+function [p,e,t]=Ustructmesh_random(x,y,region,sides)
+
+% [p,e,t]=Ustructmesh(x,y,region,sides)
+
+% This file is part of 
+%
+%            SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
+%         -------------------------------------------------------------------
+%            Copyright (C) 2004-2006  Carlo de Falco
+%
+%
+%
+%  SECS2D is free software; you can redistribute it and/or modify
+%  it under the terms of the GNU General Public License as published by
+%  the Free Software Foundation; either version 2 of the License, or
+%  (at your option) any later version.
+%
+%  SECS2D is distributed in the hope that it will be useful,
+%  but WITHOUT ANY WARRANTY; without even the implied warranty of
+%  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+%  GNU General Public License for more details.
+%
+%  You should have received a copy of the GNU General Public License
+%  along with SECS2D; If not, see <http://www.gnu.org/licenses/>.
+
+x = sort(x);
+y = sort(y);
+
+nx = length(x);
+ny = length(y);
+[XX,YY] = meshgrid(x,y);
+p = [XX(:),YY(:)]';
+iiv (ny,nx)=0;
+iiv(:)=1:nx*ny;
+iiv(end,:)=[];
+iiv(:,end)=[];
+iiv=iiv(:)';
+
+niiv = length(iiv);
+theperm = iiv(randperm(niiv));
+first = theperm(1:floor(niiv/2));
+second = theperm(floor(niiv/2)+1:end);
+
+t = [[first;first+ny;first+ny+1],[first;first+ny+1;first+1] ];
+t = [t,[second;second+ny;second+1],[second+ny;second+ny+1;second+1] ];
+
+t (4,:)=region;
+
+l1 = 1+ny*([1:nx]-1);
+l4 = 1:ny;
+l2 = ny*(nx-1)+1:nx*ny;
+l3 = ny + l1 -1;
+
+e = [ l1([1:end-1]) l2([1:end-1]) l3([1:end-1]) l4([1:end-1])
+       l1([2:end]) l2([2:end]) l3([2:end]) l4([2:end])
+       [l1([1:end-1]) l2([1:end-1]) l3([1:end-1]) l4([1:end-1])]*0
+       [l1([1:end-1]) l2([1:end-1]) l3([1:end-1]) l4([1:end-1])]*0
+       l1([1:end-1])*0+sides(1) l2([1:end-1])*0+sides(2) l3([1:end-1])*0+sides(3) l4([1:end-1])*0+sides(4)
+	   [l1([1:end-1]) l2([1:end-1]) l3([1:end-1]) l4([1:end-1])]*0
+	   [l1([1:end-1]) l2([1:end-1]) l3([1:end-1]) l4([1:end-1])]*0+region
+	   ];
+
+